i'm going to get 15'' rota slipstreams my question is
1 what offset should i be looking at
2 what width
on a crx with 2.5" lowering springs
options are

15 x 6.5 +40/+45 4h x 100
15 x 7.0 +28/+40/+45 4h x 100
15 x 7.5 +40 4h x 100
15 x 8.0 +20/+40 4h x 100

 

id say stick to +40 stock is like +35 i believe for width get the 6.5 anything else would be too wide and a 6.5 inch rim can fit tires between 195-225 maybe higher. for a crx i think the sizes should be 195/50r15 and 205/50r15 not positive tho

 

Remember what order to make your decisions in, as noted in the FAQ topic stickied at the top of this forum. Width and offset are the last things you should be deciding:

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Forum Rules and FAQ - READ BEFORE POSTING &raquo;</TD></TR><TR><TD CLASS="quote"><FONT SIZE="4">Wheels FAQ</FONT>

I want to buy wheels. How should I decide what size to get?

You need to make your decisions in the following sequence:

1. Decide on a wheel diameter (15", 16", 17", etc) based on looks, performance, availability, tire availability, etc.

2. Decide on what tire size(s) work best with that wheel diameter on your car. For street use, this is normally the tire size that has the same outer diameter as your stock tires, and is no more than 10-20 mm wider than your stock tire size. See the Tire FAQ below for recommended sizes for the most popular Honda/Acura models.

3. Decide on which tire make/model you want to get, based on what's available in those size(s), and on what your needs are (performance, weather conditions, usage, budget, etc). Again, see the Tire FAQ below for questions to consider when finding the best tire for your needs. Feel free to create a topic on the forum to ask for advice.

4. Look up the specs for approved rim widths to help you determine the rim width for that model and size of tire. You can find the specs on the tire manufacturer's website or on the website of tire dealers like the Tire Rack. You should keep the rim width within the range of approved rim widths. You may want to pick a width in the middle of the range; the one at the widest end of the range may make the tire look a bit "stretched", and at the narrowest end may make the tire look "bulging". But anywhere in the range should be okay for safety purposes.

5. Find out the best offset for your wheels and tires, based on the rim width and your car. There's no magic formula; you may have to ask those who have tried different rims. Remember that offset depends on the wheel width, so a given number for a wheel of one width may position the wheel the same as a different number for a wheel of a different width. You can convert offsets to adjust for differences in width using this wheel offset calculator.

6. Then you can find out which wheels come in the rim, width, and offset you need, as well as the bolt pattern and center bore your car's hubs require.
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So here's what you are deciding:

1. 15" wheels.

2. Best 15" tire size for your car - 195/50-15.

3. Tire make and model? This depends on whether you need to use these tires in snow, whether you plan to use them for autocrosses, etc. You need to decide this first, before you can go on to determine the best width and offset.

For example, let's say you need to use the tires in snow as well as in warmer weather, so you decide on the Falken Ziex ZE-912 all-season tire. In 195/50-15, that size is approved for rims 5.5-7.0 inches wide. To avoid the "stretched" look and to avoid leaving the rim lip exposed and susceptible to damage from curbing, you want to get rims either 15x6 or 15x6.5. You can then decide on the proper offset for whichever width you choose.

 

thanks for moving this never even realized there was a tire guide section.
and you guys gave me all the answers i was looking for thanks